﻿using System;
using System.Collections.Generic;
using System.IO;
using System.IO.Compression;
using System.Linq;
using System.Net;
using System.Net.Security;
using System.Security.Cryptography.X509Certificates;
using System.Text;
using System.Text.RegularExpressions;

namespace QccAliSlider
{
    

        /// <summary>
        /// HttpHelper 的摘要说明
        /// </summary>

        /// <summary>
        /// Http连接操作帮助类
        /// </summary>
        public class HttpHelper
        {

            public Dictionary<string, string> ContentTypeDict =
                 new Dictionary<string, string>
                { 
                    { "Form", "application/x-www-form-urlencoded; charset=UTF-8" },
                    { "Json", "application/json;charset=UTF-8" },
                    { "Text", "text/plain;charset=UTF-8" },  
                };


            #region 预定义方变量
            //默认的编码
            private Encoding encoding = Encoding.UTF8;
            //Post数据编码
            private Encoding postencoding = Encoding.Default;
            //HttpWebRequest对象用来发起请求
            private HttpWebRequest request = null;
            //获取影响流的数据对象
            private HttpWebResponse response = null;
            //设置本地的出口ip和端口
            private IPEndPoint _IPEndPoint = null;
            #endregion

            #region Public

            /// <summary>
            /// 根据相传入的数据，得到相应页面数据
            /// </summary>
            /// <param name="item">参数类对象</param>
            /// <returns>返回HttpResult类型</returns>
            public HttpResult GetHtml(HttpItem item)
            {
                //返回参数
                HttpResult result = new HttpResult();
                try
                {
                    //准备参数
                    SetRequest(item);
                }
                catch (Exception ex)
                {
                    result.Cookie = string.Empty;
                    result.Header = null;
                    result.Html = ex.Message;
                    result.StatusDescription = "配置参数时出错：" + ex.Message;
                    //配置参数时出错
                    return result;
                }
                try
                {
                    //请求数据
                    using (response = (HttpWebResponse)request.GetResponse())
                    {
                        GetData(item, result);
                    }
                }
                catch (WebException ex)
                {
                    if (ex.Response != null)
                    {
                        using (response = (HttpWebResponse)ex.Response)
                        {
                            GetData(item, result);
                        }
                    }
                    else
                    {
                        result.Html = ex.Message;
                    }
                }
                catch (Exception ex)
                {
                    result.Html = ex.Message;
                }
                if (item.IsToLower) result.Html = result.Html.ToLower();
                return result;
            }
            #endregion

            #region GetData

            /// <summary>
            /// 获取数据的并解析的方法
            /// </summary>
            /// <param name="item"></param>
            /// <param name="result"></param>
            private void GetData(HttpItem item, HttpResult result)
            {
                #region base
                //获取StatusCode
                result.StatusCode = response.StatusCode;
                //获取StatusDescription
                result.StatusDescription = response.StatusDescription;
                //获取最后访问的URl
                result.ResponseUri = response.ResponseUri.ToString();
                //获取Headers
                result.Header = response.Headers;


                //获取CookieCollection
                if (response.Cookies != null) result.CookieCollection = response.Cookies;
                //获取set-cookie
                if (response.Headers["set-cookie"] != null) result.Cookie = response.Headers["set-cookie"];

                //CookieContainer
                if (response.Headers["set-cookie"] != null) result.CookieContainer = request.CookieContainer;

                #endregion

                #region byte
                //处理网页Byte
                byte[] ResponseByte = GetByte();
                #endregion

                #region Html
                if (ResponseByte != null && ResponseByte.Length > 0)
                {
                    //设置编码
                    SetEncoding(item, result, ResponseByte);
                    //得到返回的HTML
                    result.Html = encoding.GetString(ResponseByte);
                }
                else
                {
                    //没有返回任何Html代码
                    result.Html = string.Empty;
                }
                #endregion
            }
            /// <summary>
            /// 设置编码
            /// </summary>
            /// <param name="item">HttpItem</param>
            /// <param name="result">HttpResult</param>
            /// <param name="ResponseByte">byte[]</param>
            private void SetEncoding(HttpItem item, HttpResult result, byte[] ResponseByte)
            {
                //是否返回Byte类型数据
                if (item.ResultType == ResultType.Byte) result.ResultByte = ResponseByte;
                //从这里开始我们要无视编码了
                if (encoding == null)
                {
                    Match meta = Regex.Match(Encoding.Default.GetString(ResponseByte), "<meta[^<]*charset=([^<]*)[\"']", RegexOptions.IgnoreCase);
                    string c = string.Empty;
                    if (meta != null && meta.Groups.Count > 0)
                    {
                        c = meta.Groups[1].Value.ToLower().Trim();
                    }
                    if (c.Length > 2)
                    {
                        try
                        {
                            encoding = Encoding.GetEncoding(c.Replace("\"", string.Empty).Replace("'", "").Replace(";", "").Replace("iso-8859-1", "gbk").Trim());
                        }
                        catch
                        {
                            if (string.IsNullOrEmpty(response.CharacterSet))
                            {
                                encoding = Encoding.UTF8;
                            }
                            else
                            {
                                encoding = Encoding.GetEncoding(response.CharacterSet);
                            }
                        }
                    }
                    else
                    {
                        if (string.IsNullOrEmpty(response.CharacterSet))
                        {
                            encoding = Encoding.UTF8;
                        }
                        else
                        {
                            switch (response.CharacterSet)
                            {
                                case "ISO-8859-1":
                                    encoding = Encoding.UTF8;
                                    break;
                                default:
                                    encoding = Encoding.GetEncoding(response.CharacterSet);
                                    break;
                            }

                        }
                    }
                }
            }
            /// <summary>
            /// 提取网页Byte
            /// </summary>
            /// <returns></returns>
            private byte[] GetByte()
            {
                byte[] ResponseByte = null;
                MemoryStream _stream = new MemoryStream();

                //GZIIP处理
                if (response.ContentEncoding != null && response.ContentEncoding.Equals("gzip", StringComparison.InvariantCultureIgnoreCase))
                {
                    //开始读取流并设置编码方式
                    //  _stream = GetMemoryStream(new GZipStream(response.GetResponseStream(), CompressionMode.Decompress));

                    _stream = DecompressGZip(response);

                }
                else
                {
                    //开始读取流并设置编码方式
                    _stream = GetMemoryStream(response.GetResponseStream());
                }

                /*
                Stream stream = response.GetResponseStream();

                WebHeaderCollection cc = response.Headers;

                if (response.Headers["Content-Encoding"] != null
                         && response.Headers["Content-Encoding"].ToLower().Contains("gzip"))
                {
                    //开始读取流并设置编码方式
                    _stream = GetMemoryStream(new GZipStream(stream, CompressionMode.Decompress));
                }
                else if (response.Headers["Content-Encoding"] != null
                   && response.Headers["Content-Encoding"].ToLower().Contains("deflate"))
                {
                    //开始读取流并设置编码方式
                    _stream = GetMemoryStream(new DeflateStream(stream, CompressionMode.Decompress));
                }
                else {

                    _stream = GetMemoryStream(stream);
                }
                 * 
                 * */



                //获取Byte
                ResponseByte = _stream.ToArray();
                _stream.Close();
                return ResponseByte;
            }

            /// <summary>
            /// 4.0以下.net版本取数据使用
            /// </summary>
            /// <param name="streamResponse">流</param>
            private MemoryStream GetMemoryStream(Stream streamResponse)
            {
                MemoryStream _stream = new MemoryStream();
                int Length = 256;
                Byte[] buffer = new Byte[Length];
                int bytesRead = streamResponse.Read(buffer, 0, Length);
                while (bytesRead > 0)
                {
                    _stream.Write(buffer, 0, bytesRead);
                    bytesRead = streamResponse.Read(buffer, 0, Length);
                }
                return _stream;
            }


            public MemoryStream DecompressGZip(HttpWebResponse res)
            {

                Stream stream = new GZipStream(res.GetResponseStream(), CompressionMode.Decompress);
                int length = 0;
                if (res.ContentLength > 0)
                {
                    length = (int)res.ContentLength;
                }
                else
                {
                    length = 3000;
                }
                MemoryStream memory = new MemoryStream(length);
                int count = 0;
                //每次从服务器返回流中读取5000个字节
                byte[] buffer = new byte[5000];
                while (true)
                {

                    //如果服务器使用了Transfer-Encoding：chunked缓冲输出，则如果已经读取了服务器第一次Flush的内容后服务器第二次Flush的内容还没有接收到，则会阻塞当前线程，
                    //直到接收到服务器第二次Flush的内容（第三，四。。。次Flush也是一样），所以很可能会造成读取一次返回的count不满5000，但下一次继续读取返回的count却不是0的情况

                    count = stream.Read(buffer, 0, buffer.Length);
                    if (count == 0)
                    {
                        break;
                    }
                    memory.Write(buffer, 0, count);
                }

                stream.Close();
                //将流的可读位置设置到起始值
                memory.Seek(0, SeekOrigin.Begin);
                return memory;
            }


            #endregion

            #region SetRequest

            /// <summary>
            /// 为请求准备参数
            /// </summary>
            ///<param name="item">参数列表</param>
            private void SetRequest(HttpItem item)
            {
                // 验证证书
                SetCer(item);
                if (item.IPEndPoint != null)
                {
                    _IPEndPoint = item.IPEndPoint;
                    //设置本地的出口ip和端口
                    request.ServicePoint.BindIPEndPointDelegate = new BindIPEndPoint(BindIPEndPointCallback);
                }
                //设置Header参数
                if (item.Header != null && item.Header.Count > 0) foreach (string key in item.Header.AllKeys)
                    {
                        request.Headers.Add(key, item.Header[key]);
                    }
                // 设置代理
                SetProxy(item);
                if (item.ProtocolVersion != null) request.ProtocolVersion = item.ProtocolVersion;
                request.ServicePoint.Expect100Continue = item.Expect100Continue;
                if (!string.IsNullOrEmpty(item.IndicateHost))
                {
                    request.Host = item.IndicateHost;   //连接CDN请求Url
                }

                //请求方式Get或者Post
                request.Method = item.Method;
                request.Timeout = item.Timeout;
                request.KeepAlive = item.KeepAlive;
                request.ReadWriteTimeout = item.ReadWriteTimeout;
                if (item.IfModifiedSince != null) request.IfModifiedSince = Convert.ToDateTime(item.IfModifiedSince);
                //Accept
                request.Accept = item.Accept;

                //ContentType返回类型

                if (!string.IsNullOrEmpty(item.ContentType))
                {
                    request.ContentType = item.ContentType;
                }


                //UserAgent客户端的访问类型，包括浏览器版本和操作系统信息
                request.UserAgent = item.UserAgent;
                // 编码
                encoding = item.Encoding;
                //设置安全凭证
                request.Credentials = item.ICredentials;
                //设置Cookie
                SetCookie(item);
                //来源地址
                request.Referer = item.Referer;
                //是否执行跳转功能
                request.AllowAutoRedirect = item.Allowautoredirect;
                if (item.MaximumAutomaticRedirections > 0)
                {
                    request.MaximumAutomaticRedirections = item.MaximumAutomaticRedirections;
                }


                //设置Post数据
                SetPostData(item);
                //设置最大连接
                if (item.Connectionlimit > 0) request.ServicePoint.ConnectionLimit = item.Connectionlimit;
            }
            /// <summary>
            /// 设置证书
            /// </summary>
            /// <param name="item"></param>
            private void SetCer(HttpItem item)
            {
                if (!string.IsNullOrEmpty(item.CerPath))
                {
                    //这一句一定要写在创建连接的前面。使用回调的方法进行证书验证。
                    ServicePointManager.ServerCertificateValidationCallback = new System.Net.Security.RemoteCertificateValidationCallback(CheckValidationResult);
                    //初始化对像，并设置请求的URL地址
                    request = (HttpWebRequest)WebRequest.Create(item.URL);
                    SetCerList(item);
                    //将证书添加到请求里
                    request.ClientCertificates.Add(new X509Certificate(item.CerPath));
                }
                else if (item.URL.StartsWith("https", StringComparison.OrdinalIgnoreCase))
                {

                    ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult);
                    request = WebRequest.Create(item.URL) as HttpWebRequest;
                    //request.ProtocolVersion = HttpVersion.Version10;

                    request.ProtocolVersion = HttpVersion.Version11;
                }
                else
                {
                    //初始化对像，并设置请求的URL地址
                    // request = (HttpWebRequest)WebRequest.Create(item.URL);
                    request = WebRequest.Create(item.URL) as HttpWebRequest;

                    SetCerList(item);
                }
            }
            /// <summary>
            /// 设置多个证书
            /// </summary>
            /// <param name="item"></param>
            private void SetCerList(HttpItem item)
            {
                if (item.ClentCertificates != null && item.ClentCertificates.Count > 0)
                {
                    foreach (X509Certificate c in item.ClentCertificates)
                    {
                        request.ClientCertificates.Add(c);
                    }
                }
            }
            /// <summary>
            /// 设置Cookie
            /// </summary>
            /// <param name="item">Http参数</param>
            private void SetCookie(HttpItem item)
            {
                if (!string.IsNullOrEmpty(item.Cookie))
                {
                    request.Headers[HttpRequestHeader.Cookie] = item.Cookie;

                }
                else
                {
                    //设置CookieCollection


                    if (item.CookieContainer != null)
                    {
                        if (item.ResultCookieType == ResultCookieType.CookieCollection)
                        {
                            request.CookieContainer = new CookieContainer();
                            if (item.CookieCollection != null && item.CookieCollection.Count > 0)
                                request.CookieContainer.Add(item.CookieCollection);

                        }
                        else

                            request.CookieContainer = item.CookieContainer;

                    }
                    else

                        request.CookieContainer = new CookieContainer();
                }
            }
            /// <summary>
            /// 设置Post数据
            /// </summary>
            /// <param name="item">Http参数</param>
            private void SetPostData(HttpItem item)
            {
                //验证在得到结果时是否有传入数据
                if (!request.Method.Trim().ToLower().Contains("get"))
                {
                    if (item.PostEncoding != null)
                    {
                        postencoding = item.PostEncoding;
                    }
                    byte[] buffer = null;
                    //写入Byte类型
                    if (item.PostDataType == PostDataType.Byte && item.PostdataByte != null && item.PostdataByte.Length > 0)
                    {
                        //验证在得到结果时是否有传入数据
                        buffer = item.PostdataByte;
                    }//写入文件
                    else if (item.PostDataType == PostDataType.FilePath && !string.IsNullOrEmpty(item.Postdata))
                    {
                        StreamReader r = new StreamReader(item.Postdata, postencoding);
                        buffer = postencoding.GetBytes(r.ReadToEnd());
                        r.Close();
                    } //写入字符串
                    else if (!string.IsNullOrEmpty(item.Postdata))
                    {
                        buffer = postencoding.GetBytes(item.Postdata);
                    }
                    if (buffer != null)
                    {
                        request.ContentLength = buffer.Length;
                        request.GetRequestStream().Write(buffer, 0, buffer.Length);
                    }
                    else
                    {
                        request.ContentLength = 0;
                    }
                }
            }
            /// <summary>
            /// 设置代理
            /// </summary>
            /// <param name="item">参数对象</param>
            private void SetProxy(HttpItem item)
            {
                bool isIeProxy = false;
                if (!string.IsNullOrEmpty(item.ProxyIp))
                {
                    isIeProxy = item.ProxyIp.ToLower().Contains("ieproxy");
                }
                if (!string.IsNullOrEmpty(item.ProxyIp) && !isIeProxy)
                {
                    //设置代理服务器
                    if (item.ProxyIp.Contains(":"))
                    {
                        string[] plist = item.ProxyIp.Split(':');
                        WebProxy myProxy = new WebProxy(plist[0].Trim(), Convert.ToInt32(plist[1].Trim()));
                        //建议连接
                        myProxy.Credentials = new NetworkCredential(item.ProxyUserName, item.ProxyPwd);
                        //给当前请求对象
                        request.Proxy = myProxy;
                    }
                    else
                    {
                        WebProxy myProxy = new WebProxy(item.ProxyIp, false);
                        //建议连接
                        myProxy.Credentials = new NetworkCredential(item.ProxyUserName, item.ProxyPwd);
                        //给当前请求对象
                        request.Proxy = myProxy;
                    }
                }
                else if (isIeProxy)
                {
                    //设置为IE代理
                }
                else
                {
                    request.Proxy = item.WebProxy;

                    //request.Proxy = new WebProxy("127.0.0.1",8889);
                }
            }
            #endregion

            #region private main
            /// <summary>
            /// 回调验证证书问题
            /// </summary>
            /// <param name="sender">流对象</param>
            /// <param name="certificate">证书</param>
            /// <param name="chain">X509Chain</param>
            /// <param name="errors">SslPolicyErrors</param>
            /// <returns>bool</returns>
            private bool CheckValidationResult(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors) { return true; }

            /// <summary>
            /// 通过设置这个属性，可以在发出连接的时候绑定客户端发出连接所使用的IP地址。 
            /// </summary>
            /// <param name="servicePoint"></param>
            /// <param name="remoteEndPoint"></param>
            /// <param name="retryCount"></param>
            /// <returns></returns>
            private IPEndPoint BindIPEndPointCallback(ServicePoint servicePoint, IPEndPoint remoteEndPoint, int retryCount)
            {
                return _IPEndPoint;//端口号
            }
            #endregion
        }
        /// <summary>
        /// Http请求参考类
        /// </summary>
        public class HttpItem
        {
            string _URL = string.Empty;
            /// <summary>
            /// 请求URL必须填写
            /// </summary>
            public string URL
            {
                get { return _URL; }
                set { _URL = value; }
            }
            string _Method = "GET";
            /// <summary>
            /// 请求方式默认为GET方式,当为POST方式时必须设置Postdata的值
            /// </summary>
            public string Method
            {
                get { return _Method; }
                set { _Method = value; }
            }

            /// <summary>
            /// 指定CDN请求Host
            /// </summary>
            public string IndicateHost { get; set; }

            int _Timeout = 100000;
            /// <summary>
            /// 默认请求超时时间
            /// </summary>
            public int Timeout
            {
                get { return _Timeout; }
                set { _Timeout = value; }
            }
            int _ReadWriteTimeout = 30000;
            /// <summary>
            /// 默认写入Post数据超时间
            /// </summary>
            public int ReadWriteTimeout
            {
                get { return _ReadWriteTimeout; }
                set { _ReadWriteTimeout = value; }
            }
            Boolean _KeepAlive = true;
            /// <summary>
            ///  获取或设置一个值，该值指示是否与 Internet 资源建立持久性连接默认为true。
            /// </summary>
            public Boolean KeepAlive
            {
                get { return _KeepAlive; }
                set { _KeepAlive = value; }
            }
            string _Accept = "text/html, application/xhtml+xml, */*";
            /// <summary>
            /// 请求标头值 默认为text/html, application/xhtml+xml, */*
            /// </summary>
            public string Accept
            {
                get { return _Accept; }
                set { _Accept = value; }
            }

            string _ContentType = "text/html";
            /// <summary>
            /// 请求返回类型默认 text/html
            /// </summary>
            public string ContentType
            {
                get { return _ContentType; }
                set { _ContentType = value; }
            }
            string _UserAgent = "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.101 Safari/537.36";
            /// <summary>
            /// 客户端访问信息默认Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)
            /// </summary>
            public string UserAgent
            {
                get { return _UserAgent; }
                set { _UserAgent = value; }
            }
            Encoding _Encoding = null;
            /// <summary>
            /// 返回数据编码默认为NUll,可以自动识别,一般为utf-8,gbk,gb2312
            /// </summary>
            public Encoding Encoding
            {
                get { return _Encoding; }
                set { _Encoding = value; }
            }
            private PostDataType _PostDataType = PostDataType.String;
            /// <summary>
            /// Post的数据类型
            /// </summary>
            public PostDataType PostDataType
            {
                get { return _PostDataType; }
                set { _PostDataType = value; }
            }
            string _Postdata = string.Empty;
            /// <summary>
            /// Post请求时要发送的字符串Post数据
            /// </summary>
            public string Postdata
            {
                get { return _Postdata; }
                set { _Postdata = value; }
            }
            private byte[] _PostdataByte = null;
            /// <summary>
            /// Post请求时要发送的Byte类型的Post数据
            /// </summary>
            public byte[] PostdataByte
            {
                get { return _PostdataByte; }
                set { _PostdataByte = value; }
            }
            private WebProxy _WebProxy;
            /// <summary>
            /// 设置代理对象，不想使用IE默认配置就设置为Null，而且不要设置ProxyIp
            /// </summary>
            public WebProxy WebProxy
            {
                get { return _WebProxy; }
                set { _WebProxy = value; }
            }

            /// <summary>
            /// CookieContainer对象
            /// </summary>
            CookieContainer cookieContainer = null;
            public CookieContainer CookieContainer
            {
                get { return cookieContainer; }
                set { cookieContainer = value; }
            }


            CookieCollection cookiecollection = null;

            /// <summary>
            /// Cookie对象集合
            /// </summary>
            public CookieCollection CookieCollection
            {
                get { return cookiecollection; }
                set { cookiecollection = value; }
            }
            string _Cookie = string.Empty;
            /// <summary>
            /// 请求时的Cookie
            /// </summary>
            public string Cookie
            {
                get { return _Cookie; }
                set { _Cookie = value; }
            }
            string _Referer = string.Empty;
            /// <summary>
            /// 来源地址，上次访问地址
            /// </summary>
            public string Referer
            {
                get { return _Referer; }
                set { _Referer = value; }
            }
            string _CerPath = string.Empty;
            /// <summary>
            /// 证书绝对路径
            /// </summary>
            public string CerPath
            {
                get { return _CerPath; }
                set { _CerPath = value; }
            }
            private Boolean isToLower = false;
            /// <summary>
            /// 是否设置为全文小写，默认为不转化
            /// </summary>
            public Boolean IsToLower
            {
                get { return isToLower; }
                set { isToLower = value; }
            }
            private Boolean allowautoredirect = false;
            /// <summary>
            /// 支持跳转页面，查询结果将是跳转后的页面，默认是不跳转
            /// </summary>
            public Boolean Allowautoredirect
            {
                get { return allowautoredirect; }
                set { allowautoredirect = value; }
            }
            private int connectionlimit = 1024;
            /// <summary>
            /// 最大连接数
            /// </summary>
            public int Connectionlimit
            {
                get { return connectionlimit; }
                set { connectionlimit = value; }
            }
            private string proxyusername = string.Empty;
            /// <summary>
            /// 代理Proxy 服务器用户名
            /// </summary>
            public string ProxyUserName
            {
                get { return proxyusername; }
                set { proxyusername = value; }
            }
            private string proxypwd = string.Empty;
            /// <summary>
            /// 代理 服务器密码
            /// </summary>
            public string ProxyPwd
            {
                get { return proxypwd; }
                set { proxypwd = value; }
            }
            private string proxyip = string.Empty;
            /// <summary>
            /// 代理 服务IP ,如果要使用IE代理就设置为ieproxy
            /// </summary>
            public string ProxyIp
            {
                get { return proxyip; }
                set { proxyip = value; }
            }
            private ResultType resulttype = ResultType.String;
            /// <summary>
            /// 设置返回类型String和Byte
            /// </summary>
            public ResultType ResultType
            {
                get { return resulttype; }
                set { resulttype = value; }
            }
            private WebHeaderCollection header = new WebHeaderCollection();
            /// <summary>
            /// header对象
            /// </summary>
            public WebHeaderCollection Header
            {
                get { return header; }
                set { header = value; }
            }

            private Version _ProtocolVersion;

            /// <summary>
            //     获取或设置用于请求的 HTTP 版本。返回结果:用于请求的 HTTP 版本。默认为 System.Net.HttpVersion.Version11。
            /// </summary>
            public Version ProtocolVersion
            {
                get { return _ProtocolVersion; }
                set { _ProtocolVersion = value; }
            }
            private Boolean _expect100continue = false;
            /// <summary>
            ///  获取或设置一个 System.Boolean 值，该值确定是否使用 100-Continue 行为。如果 POST 请求需要 100-Continue 响应，则为 true；否则为 false。默认值为 true。
            /// </summary>
            public Boolean Expect100Continue
            {
                get { return _expect100continue; }
                set { _expect100continue = value; }
            }
            private X509CertificateCollection _ClentCertificates;
            /// <summary>
            /// 设置509证书集合
            /// </summary>
            public X509CertificateCollection ClentCertificates
            {
                get { return _ClentCertificates; }
                set { _ClentCertificates = value; }
            }
            private Encoding _PostEncoding;
            /// <summary>
            /// 设置或获取Post参数编码,默认的为Default编码
            /// </summary>
            public Encoding PostEncoding
            {
                get { return _PostEncoding; }
                set { _PostEncoding = value; }
            }
            private ResultCookieType _ResultCookieType = ResultCookieType.String;
            /// <summary>
            /// Cookie返回类型,默认的是只返回字符串类型
            /// </summary>
            public ResultCookieType ResultCookieType
            {
                get { return _ResultCookieType; }
                set { _ResultCookieType = value; }
            }

            private ICredentials _ICredentials = CredentialCache.DefaultCredentials;
            /// <summary>
            /// 获取或设置请求的身份验证信息。
            /// </summary>
            public ICredentials ICredentials
            {
                get { return _ICredentials; }
                set { _ICredentials = value; }
            }
            /// <summary>
            /// 设置请求将跟随的重定向的最大数目
            /// </summary>
            private int _MaximumAutomaticRedirections;

            public int MaximumAutomaticRedirections
            {
                get { return _MaximumAutomaticRedirections; }
                set { _MaximumAutomaticRedirections = value; }
            }

            private DateTime? _IfModifiedSince = null;
            /// <summary>
            /// 获取和设置IfModifiedSince，默认为当前日期和时间
            /// </summary>
            public DateTime? IfModifiedSince
            {
                get { return _IfModifiedSince; }
                set { _IfModifiedSince = value; }
            }
            #region ip-port
            private IPEndPoint _IPEndPoint = null;
            /// <summary>
            /// 设置本地的出口ip和端口
            /// </summary>]
            /// <example>
            ///item.IPEndPoint = new IPEndPoint(IPAddress.Parse("192.168.1.1"),80);
            /// </example>
            public IPEndPoint IPEndPoint
            {
                get { return _IPEndPoint; }
                set { _IPEndPoint = value; }
            }
            #endregion
        }
        /// <summary>
        /// Http返回参数类
        /// </summary>
        public class HttpResult
        {
            private string _Cookie;
            /// <summary>
            /// Http请求返回的Cookie
            /// </summary>
            public string Cookie
            {
                get { return _Cookie; }
                set { _Cookie = value; }
            }

            /// <summary>
            /// CookieContainer对象
            /// </summary>
            CookieContainer cookieContainer = null;
            public CookieContainer CookieContainer
            {
                get { return cookieContainer; }
                set { cookieContainer = value; }
            }

            private CookieCollection _CookieCollection;
            /// <summary>
            /// Cookie对象集合
            /// </summary>
            public CookieCollection CookieCollection
            {
                get { return _CookieCollection; }
                set { _CookieCollection = value; }
            }
            private string _html = string.Empty;
            /// <summary>
            /// 返回的String类型数据 只有ResultType.String时才返回数据，其它情况为空
            /// </summary>
            public string Html
            {
                get { return _html; }
                set { _html = value; }
            }
            private byte[] _ResultByte;
            /// <summary>
            /// 返回的Byte数组 只有ResultType.Byte时才返回数据，其它情况为空
            /// </summary>
            public byte[] ResultByte
            {
                get { return _ResultByte; }
                set { _ResultByte = value; }
            }
            private WebHeaderCollection _Header;
            /// <summary>
            /// header对象
            /// </summary>
            public WebHeaderCollection Header
            {
                get { return _Header; }
                set { _Header = value; }
            }
            private string _StatusDescription;
            /// <summary>
            /// 返回状态说明
            /// </summary>
            public string StatusDescription
            {
                get { return _StatusDescription; }
                set { _StatusDescription = value; }
            }
            private HttpStatusCode _StatusCode;
            /// <summary>
            /// 返回状态码,默认为OK
            /// </summary>
            public HttpStatusCode StatusCode
            {
                get { return _StatusCode; }
                set { _StatusCode = value; }
            }
            /// <summary>
            /// 最后访问的URl
            /// </summary>
            public string ResponseUri { get; set; }
            /// <summary>
            /// 获取重定向的URl
            /// </summary>
            public string RedirectUrl
            {
                get
                {
                    try
                    {
                        if (Header != null && Header.Count > 0)
                        {
                            string baseurl = Header["location"].ToString().Trim();
                            string locationurl = baseurl.ToLower();
                            if (!string.IsNullOrWhiteSpace(locationurl))
                            {
                                bool b = locationurl.StartsWith("http://") || locationurl.StartsWith("https://");
                                if (!b)
                                {
                                    baseurl = new Uri(new Uri(ResponseUri), baseurl).AbsoluteUri;
                                }
                            }
                            return baseurl;
                        }
                    }
                    catch { }
                    return string.Empty;
                }

            }
        }
        /// <summary>
        /// 返回类型
        /// </summary>
        public enum ResultType
        {
            /// <summary>
            /// 表示只返回字符串 只有Html有数据
            /// </summary>
            String,
            /// <summary>
            /// 表示返回字符串和字节流 ResultByte和Html都有数据返回
            /// </summary>
            Byte
        }
        /// <summary>
        /// Post的数据格式默认为string
        /// </summary>
        public enum PostDataType
        {
            /// <summary>
            /// 字符串类型，这时编码Encoding可不设置
            /// </summary>
            String,
            /// <summary>
            /// Byte类型，需要设置PostdataByte参数的值编码Encoding可设置为空
            /// </summary>
            Byte,
            /// <summary>
            /// 传文件，Postdata必须设置为文件的绝对路径，必须设置Encoding的值
            /// </summary>
            FilePath
        }
        /// <summary>
        /// Cookie返回类型
        /// </summary>
        public enum ResultCookieType
        {
            /// <summary>
            /// 只返回字符串类型的Cookie
            /// </summary>
            String,
            /// <summary>
            /// CookieCollection格式的Cookie集合同时也返回String类型的cookie
            /// </summary>
            CookieCollection

        }


        public class ResultModel
        {
            public bool Pass { get; set; }
            public string html { get; set; }
            public string Message { get; set; }
            public bool Stop { get; set; }
            public bool ReLogin { get; set; }

        }


        public enum RequestType
        {
            Html,
            Json,
            Bytes
        }

        public enum RequestMethod
        {
            GET,
            POST
        }


        public enum ContentType
        {
            Form,
            Json,
            Text

        }

     
}
